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Early warning method for collision avoidance of helicopter in training flight

A helicopter and anti-collision technology, applied in three-dimensional position/channel control and other directions

Inactive Publication Date: 2013-05-08
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that there is a serious safety threat of collision with obstacles in low-altitude helicopter flight, which needs to be solved urgently

Method used

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  • Early warning method for collision avoidance of helicopter in training flight
  • Early warning method for collision avoidance of helicopter in training flight
  • Early warning method for collision avoidance of helicopter in training flight

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Embodiment Construction

[0069] A kind of anti-collision early warning method for helicopter training flight proposed by the present invention: the method is based on microcomputer technology, satellite positioning technology and the principle of real-time comparison position, before the helicopter training flight, the method establishes the training flight area topography database and obstacle database in advance , after the helicopter takes off, the method calculates and updates the horizontal distance and the vertical distance between the helicopter (1) and each obstacle in real time, and calculates and updates the horizontal and vertical distance between the current position of the helicopter (1) and the topography in real time. The shortest distance can be used to detect whether there are obstacles in the "instantaneous early warning airspace" of the helicopter (1) and whether the helicopter (1) is in danger of colliding with the mountain according to the "early warning algorithm", and then alarm a...

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Abstract

The invention discloses an early warning method for collision avoidance of a helicopter in a training flight. By the method, early warning can be carried out on dangerous obstacles and landforms on a training flight line of the helicopter. The method comprises the following steps of: based on a micro-computer technology, a satellite positioning technology and a position real-time comparison principle, pre-establishing databases of the landforms and the obstacles in a training flight area prior to the training flight of the helicopter; computing and updating a shortest distance between a current position of the helicopter and the landforms in real time after the helicopter takes off, and computing and updating horizontal and vertical distances between the helicopter and the obstacles in real time so as to detect whether the helicopter is in danger of collision of mountains or the obstacles; and then carrying out early warning according to a detection result.

Description

technical field [0001] The invention relates to a helicopter anti-collision warning, in particular to a method for realizing a helicopter training flight collision avoidance warning. Background technique [0002] The role of helicopters in safeguarding national economic construction has become increasingly prominent. They can perform tasks such as transporting supplies, city patrols, and forest fire prevention and search and rescue. However, at present, the number of domestic helicopters and helicopter flight instructors are relatively small, and pilots are also in short supply. In this case, it is particularly important to train a large number of helicopter pilots to ensure the safety of helicopter training flights. [0003] Helicopters often fly over cities, complex low altitudes, hilly areas and other areas. The hilly and mountainous terrain has large undulations, complex and changeable weather, short visual distance, low-altitude ground high-voltage lines, dense cables...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/10
Inventor 高勇袁诚黄永华
Owner SICHUAN UNIV